Case Report: Catheter ablation of atrial fibrillation in a patient with cor triatriatum sinistrum: the pivotal role of intracardiac echocardiography and electroanatomic mapping - Report - MDSpire
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Case Report: Catheter ablation of atrial fibrillation in a patient with cor triatriatum sinistrum: the pivotal role of intracardiac echocardiography and electroanatomic mapping
Clinical Report: Successful Catheter Ablation of Atrial Fibrillation in CTS
Overview
This case study highlights the successful catheter ablation of atrial fibrillation in a patient with cor triatriatum sinister, emphasizing the critical role of intracardiac echocardiography and electroanatomic mapping. The findings suggest that advanced imaging techniques can significantly enhance procedural outcomes in patients with complex cardiac anatomy.
Background
Cor triatriatum sinister (CTS) is a rare congenital heart defect that complicates the management of atrial fibrillation (AF). With a prevalence of 0.1%–0.4% among congenital anomalies, it poses unique challenges for catheter ablation due to its complex left atrial structure. Understanding the arrhythmogenic mechanisms in CTS is crucial for optimizing treatment strategies in affected patients.
Data Highlights
No numerical data provided in the article.
Key Findings
Intracardiac echocardiography (ICE) was essential for guiding transseptal puncture and delineating atrial chambers.
Electroanatomic mapping revealed a high-voltage area at the fibromuscular membrane, contrary to expectations of a low-voltage zone.
The patient presented with persistent AF and had a 30.5 mm membrane with a 15.1 mm fenestration orifice.
ICE facilitated safe navigation and catheter contact in the complex anatomy of CTS.
Less than 20 cases of AF ablation in CTS have been reported, highlighting the rarity of this condition.
Clinical Implications
The use of ICE and electroanatomic mapping can significantly improve the safety and efficacy of catheter ablation procedures in patients with complex congenital heart defects like CTS. Clinicians should consider these advanced imaging techniques to enhance procedural outcomes and minimize complications.
Conclusion
This case underscores the importance of individualized ablation strategies and advanced imaging in managing atrial fibrillation in patients with cor triatriatum sinister. Further studies are needed to establish standardized approaches for similar cases.
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